<template>
  <div :id="id" ref="chartView" :class="className" :style="{ height: height, width: width }" />
</template>

<script>
  import tdTheme from './theme.json' // 引入默认主题
  import '../map/330700.js'
  export default {
    name: "index",
    components: {},
    props: {
      className: {
        type: String,
        default: 'chart'
      },
      id: {
        type: String,
        default: 'chart'
      },
      width: {
        type: String,
        default: '100%'
      },
      height: {
        type: String,
        default: '2.5rem'
      },
      options: {
        type: Object,
        default: ()=>({})
      }
    },
    data() {
      return {
        chart: null
      }
    },
    watch: {
      options: {
        handler (options) {
          // 设置true清空echart缓存
          this.chart.setOption(options, true)
        },
        deep: true
      }
    },
    methods: {
      initChart () {
        // 初始化echart
        this.chart = this.$echarts.init(this.$refs.chartView, 'tdTheme')
        this.chart.setOption(this.options, true)
      }
    },
    mounted () {
      this.$echarts.registerTheme('tdTheme', tdTheme); // 覆盖默认主题
      this.initChart();
    },
    beforeDestroy () {
      this.chart.dispose()
      this.chart = null
    },
  }
</script>

<style scoped>

</style>
